General Knowledge
Which type of cell produces surfactant?
Type II alveolar cells
This part of the pharynx contains the palatine and lingual tonsils.
Oropharynx
What is the difference between total lung capacity and vital capacity?
Total lung capacity includes the residual volume
What structure contains the vocal cords?
Larynx
When the diaphragm is contracted, it ___________ the volume in the thoracic cavity, which ____________ the pressure and sucks air in.
increases
decreases
This is something that breaks up surface tension and helps prevent alveolar collapse.
Pulmonary surfactant
At the tissues oxygen levels in the blood are _______ and oxygen levels in the tissue fluid is _________, so oxygen flows ______________.
100 mm Hg (high)
40 mm Hg (low)
into the tissues
What is the name of the site where the bronchi and pulmonary vessels enter the lungs?
Hilum
The trachea is part of the _________________.
Lower respiratory tract
The extra or additional volume we can breathe in past a normal inhale is _____________.
Inspiratory reserve volume
Internal respiration is exchange of gasses between:
The blood and the tissues
What is the name of the double membrane that surrounds the lungs?
Pleura
What is considered part of the respiratory division?
alveoli
Breathing in and out as hard as you can is:
vital capacity
External respiration is exchange of gasses between:
The air in the lungs and the blood
At the lungs CO2 levels are __________ in the blood and ___________ in the alveolar air, so CO2 flows ____________.
46 mm Hg (high)
40 mm Hg (low)
into the air
At the lungs, the partial pressure of oxygen in the blood is _________ and the partial pressure of oxygen in the air in the alveoli is ____________, so oxygen flows ______________.
40 mm Hg (low)
100 mm Hg (high)
Into the blood
All the air the lungs can contain is:
Total lung capacity
Part of the throat that receives the eustachian tubes:
nasopharynx
Where the partial pressure of oxygen is high hemoglobin will _________ oxygen. Where the partial pressure of oxygen is low hemoglobin will ___________ oxygen.
load (be highly saturated with)
unload (be less highly saturated with)